<table border="1" mj_done="true">
    <thead>
    <tr>
        <th>序号</th>
        <th>编号</th>
        <th>题目</th>
        <th>通过率</th>
        <th>难度</th>
        <th>出题指数</th>
        <th>出现频率</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td>1</td>
        <td>1</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum/">两数之和</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.306</td>
    </tr>
    <tr>
        <td>2</td>
        <td>3</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/">无重复字符的最长子串</a>
        </td>
        <td>32.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.326</td>
    </tr>
    <tr>
        <td>3</td>
        <td>2</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers/">两数相加</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.228</td>
    </tr>
    <tr>
        <td>4</td>
        <td>42</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water/">接雨水</a></td>
        <td>48.4%</td>
        <td>困难</td>
        <td>4</td>
        <td>0.666</td>
    </tr>
    <tr>
        <td>5</td>
        <td>5</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-substring/">最长回文子串</a></td>
        <td>28.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.272</td>
    </tr>
    <tr>
        <td>6</td>
        <td>53</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-subarray/">最大子序和</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.245</td>
    </tr>
    <tr>
        <td>7</td>
        <td>4</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/median-of-two-sorted-arrays/">寻找两个有序数组的中位数</a>
        </td>
        <td>36.7%</td>
        <td>困难</td>
        <td>4</td>
        <td>0.289</td>
    </tr>
    <tr>
        <td>8</td>
        <td>15</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum/">三数之和</a></td>
        <td>25.4%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.237</td>
    </tr>
    <tr>
        <td>9</td>
        <td>21</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-sorted-lists/">合并两个有序链表</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.21</td>
    </tr>
    <tr>
        <td>10</td>
        <td>146</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lru-cache/">LRU缓存机制</a></td>
        <td>45.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.636</td>
    </tr>
    <tr>
        <td>11</td>
        <td>206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list/">反转链表</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.205</td>
    </tr>
    <tr>
        <td>12</td>
        <td>7</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-integer/">整数反转</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.122</td>
    </tr>
    <tr>
        <td>13</td>
        <td>20</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parentheses/">有效的括号</a></td>
        <td>40.8%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.136</td>
    </tr>
    <tr>
        <td>14</td>
        <td>11</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/container-with-most-water/">盛最多水的容器</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.166</td>
    </tr>
    <tr>
        <td>15</td>
        <td>93</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/restore-ip-addresses/">复原IP地址</a></td>
        <td>45.6%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.629</td>
    </tr>
    <tr>
        <td>16</td>
        <td>46</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations/">全排列</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.22</td>
    </tr>
    <tr>
        <td>17</td>
        <td>141</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle/">环形链表</a></td>
        <td>46.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.163</td>
    </tr>
    <tr>
        <td>18</td>
        <td>9</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-number/">回文数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.101</td>
    </tr>
    <tr>
        <td>19</td>
        <td>31</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-permutation/">下一个排列</a></td>
        <td>32.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.262</td>
    </tr>
    <tr>
        <td>20</td>
        <td>200</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands/">岛屿数量</a></td>
        <td>46.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.253</td>
    </tr>
    <tr>
        <td>21</td>
        <td>56</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-intervals/">合并区间</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.223</td>
    </tr>
    <tr>
        <td>22</td>
        <td>70</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/climbing-stairs/">爬楼梯</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.104</td>
    </tr>
    <tr>
        <td>23</td>
        <td>121</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/">买卖股票的最佳时机</a>
        </td>
        <td>52.3%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.117</td>
    </tr>
    <tr>
        <td>24</td>
        <td>62</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths/">不同路径</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>25</td>
        <td>92</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list-ii/">反转链表 II</a></td>
        <td>48.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.288</td>
    </tr>
    <tr>
        <td>26</td>
        <td>322</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change/">零钱兑换</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.259</td>
    </tr>
    <tr>
        <td>27</td>
        <td>88</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-sorted-array/">合并两个有序数组</a></td>
        <td>46.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.116</td>
    </tr>
    <tr>
        <td>28</td>
        <td>14</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-common-prefix/">最长公共前缀</a></td>
        <td>36.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.072</td>
    </tr>
    <tr>
        <td>29</td>
        <td>19</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/">删除链表的倒数第N个节点</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.09</td>
    </tr>
    <tr>
        <td>30</td>
        <td>23</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-k-sorted-lists/">合并K个排序链表</a></td>
        <td>48.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>31</td>
        <td>33</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array/">搜索旋转排序数组</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.135</td>
    </tr>
    <tr>
        <td>32</td>
        <td>215</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-an-array/">数组中的第K个最大元素</a>
        </td>
        <td>60.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.147</td>
    </tr>
    <tr>
        <td>33</td>
        <td>445</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers-ii/">两数相加 II</a></td>
        <td>53.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.447</td>
    </tr>
    <tr>
        <td>34</td>
        <td>175</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combine-two-tables/">组合两个表</a></td>
        <td>71.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.156</td>
    </tr>
    <tr>
        <td>35</td>
        <td>101</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/symmetric-tree/">对称二叉树</a></td>
        <td>49.9%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.105</td>
    </tr>
    <tr>
        <td>36</td>
        <td>25</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-nodes-in-k-group/">K 个一组翻转链表</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.209</td>
    </tr>
    <tr>
        <td>37</td>
        <td>39</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum/">组合总和</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.137</td>
    </tr>
    <tr>
        <td>38</td>
        <td>50</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/powx-n/">Pow(x, n)</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>39</td>
        <td>54</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix/">螺旋矩阵</a></td>
        <td>38.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.181</td>
    </tr>
    <tr>
        <td>40</td>
        <td>135</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/candy/">分发糖果</a></td>
        <td>41.2%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.455</td>
    </tr>
    <tr>
        <td>41</td>
        <td>69</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sqrtx/">x 的平方根</a></td>
        <td>37.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.109</td>
    </tr>
    <tr>
        <td>42</td>
        <td>72</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/edit-distance/">编辑距离</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.225</td>
    </tr>
    <tr>
        <td>43</td>
        <td>22</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/generate-parentheses/">括号生成</a></td>
        <td>73.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>44</td>
        <td>45</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game-ii/">跳跃游戏 II</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.196</td>
    </tr>
    <tr>
        <td>45</td>
        <td>124</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-maximum-path-sum/">二叉树中的最大路径和</a></td>
        <td>39.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.237</td>
    </tr>
    <tr>
        <td>46</td>
        <td>148</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-list/">排序链表</a></td>
        <td>63.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.163</td>
    </tr>
    <tr>
        <td>47</td>
        <td>182</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/duplicate-emails/">查找重复的电子邮箱</a></td>
        <td>78.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.198</td>
    </tr>
    <tr>
        <td>48</td>
        <td>185</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-top-three-salaries/">部门工资前三高的所有员工</a>
        </td>
        <td>41.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.497</td>
    </tr>
    <tr>
        <td>49</td>
        <td>235</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">二叉搜索树的最近公共祖先</a>
        </td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.181</td>
    </tr>
    <tr>
        <td>50</td>
        <td>240</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix-ii/">搜索二维矩阵 II</a></td>
        <td>38.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.177</td>
    </tr>
    <tr>
        <td>51</td>
        <td>24</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/swap-nodes-in-pairs/">两两交换链表中的节点</a></td>
        <td>64.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.086</td>
    </tr>
    <tr>
        <td>52</td>
        <td>26</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/">删除排序数组中的重复项</a></td>
        <td>48.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>53</td>
        <td>48</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-image/">旋转图像</a></td>
        <td>66.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.124</td>
    </tr>
    <tr>
        <td>54</td>
        <td>76</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-window-substring/">最小覆盖子串</a></td>
        <td>35.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.223</td>
    </tr>
    <tr>
        <td>55</td>
        <td>78</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subsets/">子集</a></td>
        <td>76.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.111</td>
    </tr>
    <tr>
        <td>56</td>
        <td>94</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-inorder-traversal/">二叉树的中序遍历</a></td>
        <td>70.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>57</td>
        <td>102</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal/">二叉树的层次遍历</a>
        </td>
        <td>60.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.089</td>
    </tr>
    <tr>
        <td>58</td>
        <td>151</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string/">翻转字符串里的单词</a></td>
        <td>35.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.207</td>
    </tr>
    <tr>
        <td>59</td>
        <td>184</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-highest-salary/">部门工资最高的员工</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.331</td>
    </tr>
    <tr>
        <td>60</td>
        <td>204</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-primes/">计数质数</a></td>
        <td>32.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.176</td>
    </tr>
    <tr>
        <td>61</td>
        <td>221</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-square/">最大正方形</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.236</td>
    </tr>
    <tr>
        <td>62</td>
        <td>695</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-area-of-island/">岛屿的最大面积</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.325</td>
    </tr>
    <tr>
        <td>63</td>
        <td>10</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/regular-expression-matching/">正则表达式匹配</a></td>
        <td>26.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.124</td>
    </tr>
    <tr>
        <td>64</td>
        <td>28</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-strstr/">实现 strStr()</a></td>
        <td>39.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.067</td>
    </tr>
    <tr>
        <td>65</td>
        <td>41</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-missing-positive/">缺失的第一个正数</a></td>
        <td>37.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.182</td>
    </tr>
    <tr>
        <td>66</td>
        <td>55</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game/">跳跃游戏</a></td>
        <td>38.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>67</td>
        <td>16</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-closest/">最接近的三数之和</a></td>
        <td>42.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.073</td>
    </tr>
    <tr>
        <td>68</td>
        <td>112</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum/">路径总和</a></td>
        <td>48.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.09</td>
    </tr>
    <tr>
        <td>69</td>
        <td>136</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number/">只出现一次的数字</a></td>
        <td>65.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.05</td>
    </tr>
    <tr>
        <td>70</td>
        <td>139</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break/">单词拆分</a></td>
        <td>43.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.127</td>
    </tr>
    <tr>
        <td>71</td>
        <td>199</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-right-side-view/">二叉树的右视图</a></td>
        <td>63.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.199</td>
    </tr>
    <tr>
        <td>72</td>
        <td>209</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-size-subarray-sum/">长度最小的子数组</a></td>
        <td>41.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.173</td>
    </tr>
    <tr>
        <td>73</td>
        <td>386</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lexicographical-numbers/">字典序排数</a></td>
        <td>68.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.556</td>
    </tr>
    <tr>
        <td>74</td>
        <td>560</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarray-sum-equals-k/">和为K的子数组</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.252</td>
    </tr>
    <tr>
        <td>75</td>
        <td>674</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-continuous-increasing-subsequence/">最长连续递增序列</a>
        </td>
        <td>43.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.297</td>
    </tr>
    <tr>
        <td>76</td>
        <td>71</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/simplify-path/">简化路径</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.154</td>
    </tr>
    <tr>
        <td>77</td>
        <td>104</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/">二叉树的最大深度</a></td>
        <td>72.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>78</td>
        <td>144</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-preorder-traversal/">二叉树的前序遍历</a></td>
        <td>64.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>79</td>
        <td>167</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/">两数之和 II -
            输入有序数组</a></td>
        <td>52.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.073</td>
    </tr>
    <tr>
        <td>80</td>
        <td>219</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate-ii/">存在重复元素 II</a></td>
        <td>37.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.138</td>
    </tr>
    <tr>
        <td>81</td>
        <td>300</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-increasing-subsequence/">最长上升子序列</a></td>
        <td>43.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.11</td>
    </tr>
    <tr>
        <td>82</td>
        <td>350</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays-ii/">两个数组的交集 II</a>
        </td>
        <td>46.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>83</td>
        <td>83</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list/">删除排序链表中的重复元素</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>84</td>
        <td>37</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sudoku-solver/">解数独</a></td>
        <td>59.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.249</td>
    </tr>
    <tr>
        <td>85</td>
        <td>82</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list-ii/">删除排序链表中的重复元素
            II</a></td>
        <td>45.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.143</td>
    </tr>
    <tr>
        <td>86</td>
        <td>155</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/min-stack/">最小栈</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.07</td>
    </tr>
    <tr>
        <td>87</td>
        <td>203</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-linked-list-elements/">移除链表元素</a></td>
        <td>43.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.099</td>
    </tr>
    <tr>
        <td>88</td>
        <td>876</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/middle-of-the-linked-list/">链表的中间结点</a></td>
        <td>64.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.184</td>
    </tr>
    <tr>
        <td>89</td>
        <td>81</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array-ii/">搜索旋转排序数组
            II</a></td>
        <td>34.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.211</td>
    </tr>
    <tr>
        <td>90</td>
        <td>17</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/">电话号码的字母组合</a></td>
        <td>52.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>91</td>
        <td>349</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays/">两个数组的交集</a></td>
        <td>68.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.12</td>
    </tr>
    <tr>
        <td>92</td>
        <td>192</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-frequency/">统计词频</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.605</td>
    </tr>
    <tr>
        <td>93</td>
        <td>74</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix/">搜索二维矩阵</a></td>
        <td>37.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.091</td>
    </tr>
    <tr>
        <td>94</td>
        <td>75</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-colors/">颜色分类</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>95</td>
        <td>98</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-binary-search-tree/">验证二叉搜索树</a></td>
        <td>28.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.05</td>
    </tr>
    <tr>
        <td>96</td>
        <td>103</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-zigzag-level-order-traversal/">二叉树的锯齿形层次遍历</a>
        </td>
        <td>53.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.089</td>
    </tr>
    <tr>
        <td>97</td>
        <td>120</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/triangle/">三角形最小路径和</a></td>
        <td>63.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>98</td>
        <td>191</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-1-bits/">位1的个数</a></td>
        <td>64.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.076</td>
    </tr>
    <tr>
        <td>99</td>
        <td>260</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number-iii/">只出现一次的数字 III</a></td>
        <td>69.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.202</td>
    </tr>
    <tr>
        <td>100</td>
        <td>295</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-median-from-data-stream/">数据流的中位数</a></td>
        <td>42.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.258</td>
    </tr>
    <tr>
        <td>101</td>
        <td>312</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/burst-balloons/">戳气球</a></td>
        <td>57.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.31</td>
    </tr>
    <tr>
        <td>102</td>
        <td>440</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/k-th-smallest-in-lexicographical-order/">字典序的第K小数字</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.566</td>
    </tr>
    <tr>
        <td>103</td>
        <td>443</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-compression/">压缩字符串</a></td>
        <td>39.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.204</td>
    </tr>
    <tr>
        <td>104</td>
        <td>546</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-boxes/">移除盒子</a></td>
        <td>48.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.941</td>
    </tr>
    <tr>
        <td>105</td>
        <td>647</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindromic-substrings/">回文子串</a></td>
        <td>60.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.161</td>
    </tr>
    <tr>
        <td>106</td>
        <td>84</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-rectangle-in-histogram/">柱状图中最大的矩形</a>
        </td>
        <td>38.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.1</td>
    </tr>
    <tr>
        <td>107</td>
        <td>91</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways/">解码方法</a></td>
        <td>23.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.08</td>
    </tr>
    <tr>
        <td>108</td>
        <td>127</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder/">单词接龙</a></td>
        <td>39.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.139</td>
    </tr>
    <tr>
        <td>109</td>
        <td>137</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number-ii/">只出现一次的数字 II</a></td>
        <td>65.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>110</td>
        <td>143</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reorder-list/">重排链表</a></td>
        <td>54.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.161</td>
    </tr>
    <tr>
        <td>111</td>
        <td>160</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists/">相交链表</a></td>
        <td>52.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.048</td>
    </tr>
    <tr>
        <td>112</td>
        <td>176</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-highest-salary/">第二高的薪水</a></td>
        <td>33.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.069</td>
    </tr>
    <tr>
        <td>113</td>
        <td>189</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-array/">旋转数组</a></td>
        <td>40.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.049</td>
    </tr>
    <tr>
        <td>114</td>
        <td>239</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sliding-window-maximum/">滑动窗口最大值</a></td>
        <td>43.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.116</td>
    </tr>
    <tr>
        <td>115</td>
        <td>393</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/utf-8-validation/">UTF-8 编码验证</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.604</td>
    </tr>
    <tr>
        <td>116</td>
        <td>435</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-overlapping-intervals/">无重叠区间</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.266</td>
    </tr>
    <tr>
        <td>117</td>
        <td>460</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lfu-cache/">LFU缓存</a></td>
        <td>33.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.768</td>
    </tr>
    <tr>
        <td>118</td>
        <td>547</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-circles/">朋友圈</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.149</td>
    </tr>
    <tr>
        <td>119</td>
        <td>788</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotated-digits/">旋转数字</a></td>
        <td>58.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.43</td>
    </tr>
    <tr>
        <td>120</td>
        <td>169</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element/">多数元素</a></td>
        <td>61.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>121</td>
        <td>264</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ugly-number-ii/">丑数 II</a></td>
        <td>49.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>122</td>
        <td>35</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-insert-position/">搜索插入位置</a></td>
        <td>45.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.033</td>
    </tr>
    <tr>
        <td>123</td>
        <td>128</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-consecutive-sequence/">最长连续序列</a></td>
        <td>47.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.137</td>
    </tr>
    <tr>
        <td>124</td>
        <td>153</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array/">寻找旋转排序数组中的最小值</a>
        </td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.103</td>
    </tr>
    <tr>
        <td>125</td>
        <td>181</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/employees-earning-more-than-their-managers/">超过经理收入的员工</a>
        </td>
        <td>68.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>126</td>
        <td>12</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-roman/">整数转罗马数字</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.055</td>
    </tr>
    <tr>
        <td>127</td>
        <td>698</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-to-k-equal-sum-subsets/">划分为k个相等的子集</a>
        </td>
        <td>40.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.377</td>
    </tr>
    <tr>
        <td>128</td>
        <td>125</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome/">验证回文串</a></td>
        <td>42.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>129</td>
        <td>387</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/first-unique-character-in-a-string/">字符串中的第一个唯一字符</a></td>
        <td>43.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.081</td>
    </tr>
    <tr>
        <td>130</td>
        <td>110</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/balanced-binary-tree/">平衡二叉树</a></td>
        <td>50.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>131</td>
        <td>43</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/multiply-strings/">字符串相乘</a></td>
        <td>41.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>132</td>
        <td>79</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search/">单词搜索</a></td>
        <td>40.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>133</td>
        <td>1046</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/last-stone-weight/">最后一块石头的重量</a></td>
        <td>58.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.24</td>
    </tr>
    <tr>
        <td>134</td>
        <td>145</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-postorder-traversal/">二叉树的后序遍历</a>
        </td>
        <td>70.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>135</td>
        <td>138</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/copy-list-with-random-pointer/">复制带随机指针的链表</a>
        </td>
        <td>43.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.143</td>
    </tr>
    <tr>
        <td>136</td>
        <td>321</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/create-maximum-number/">拼接最大数</a></td>
        <td>26.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.701</td>
    </tr>
    <tr>
        <td>137</td>
        <td>279</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/perfect-squares/">完全平方数</a></td>
        <td>53.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.092</td>
    </tr>
    <tr>
        <td>138</td>
        <td>152</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-subarray/">乘积最大子序列</a></td>
        <td>37.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>139</td>
        <td>61</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-list/">旋转链表</a></td>
        <td>39.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.076</td>
    </tr>
    <tr>
        <td>140</td>
        <td>6</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-conversion/">Z 字形变换</a></td>
        <td>46.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.042</td>
    </tr>
    <tr>
        <td>141</td>
        <td>105</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/">从前序与中序遍历序列构造二叉树</a>
        </td>
        <td>63.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>142</td>
        <td>162</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-peak-element/">寻找峰值</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>143</td>
        <td>63</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths-ii/">不同路径 II</a></td>
        <td>32.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>144</td>
        <td>123</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii/">买卖股票的最佳时机
            III</a></td>
        <td>40.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.126</td>
    </tr>
    <tr>
        <td>145</td>
        <td>109</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree/">有序链表转换二叉搜索树</a>
        </td>
        <td>70.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.078</td>
    </tr>
    <tr>
        <td>146</td>
        <td>226</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/invert-binary-tree/">翻转二叉树</a></td>
        <td>73.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.028</td>
    </tr>
    <tr>
        <td>147</td>
        <td>234</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-linked-list/">回文链表</a></td>
        <td>40.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.029</td>
    </tr>
    <tr>
        <td>148</td>
        <td>287</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-duplicate-number/">寻找重复数</a></td>
        <td>62.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>149</td>
        <td>301</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-invalid-parentheses/">删除无效的括号</a></td>
        <td>45.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.218</td>
    </tr>
    <tr>
        <td>150</td>
        <td>319</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bulb-switcher/">灯泡开关</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.184</td>
    </tr>
    <tr>
        <td>151</td>
        <td>405</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-a-number-to-hexadecimal/">数字转换为十六进制数</a>
        </td>
        <td>49.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.171</td>
    </tr>
    <tr>
        <td>152</td>
        <td>407</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water-ii/">接雨水 II</a></td>
        <td>34.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.412</td>
    </tr>
    <tr>
        <td>153</td>
        <td>410</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/split-array-largest-sum/">分割数组的最大值</a></td>
        <td>40.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.316</td>
    </tr>
    <tr>
        <td>154</td>
        <td>454</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/4sum-ii/">四数相加 II</a></td>
        <td>54.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.113</td>
    </tr>
    <tr>
        <td>155</td>
        <td>583</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-operation-for-two-strings/">两个字符串的删除操作</a>
        </td>
        <td>47.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.255</td>
    </tr>
    <tr>
        <td>156</td>
        <td>934</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-bridge/">最短的桥</a></td>
        <td>42.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.396</td>
    </tr>
    <tr>
        <td>157</td>
        <td>8</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-to-integer-atoi/">字符串转换整数 (atoi)</a></td>
        <td>19.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.018</td>
    </tr>
    <tr>
        <td>158</td>
        <td>32</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-valid-parentheses/">最长有效括号</a></td>
        <td>29.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.038</td>
    </tr>
    <tr>
        <td>159</td>
        <td>114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list/">二叉树展开为链表</a>
        </td>
        <td>67.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.05</td>
    </tr>
    <tr>
        <td>160</td>
        <td>198</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber/">打家劫舍</a></td>
        <td>42.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.022</td>
    </tr>
    <tr>
        <td>161</td>
        <td>230</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-bst/">二叉搜索树中第K小的元素</a>
        </td>
        <td>68.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>162</td>
        <td>257</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-paths/">二叉树的所有路径</a></td>
        <td>61.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>163</td>
        <td>263</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ugly-number/">丑数</a></td>
        <td>48.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.064</td>
    </tr>
    <tr>
        <td>164</td>
        <td>303</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-immutable/">区域和检索 - 数组不可变</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>165</td>
        <td>344</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string/">反转字符串</a></td>
        <td>68.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>166</td>
        <td>367</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-perfect-square/">有效的完全平方数</a></td>
        <td>43.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.073</td>
    </tr>
    <tr>
        <td>167</td>
        <td>400</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nth-digit/">第N个数字</a></td>
        <td>34.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.284</td>
    </tr>
    <tr>
        <td>168</td>
        <td>415</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-strings/">字符串相加</a></td>
        <td>49.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>169</td>
        <td>474</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ones-and-zeroes/">一和零</a></td>
        <td>49.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.229</td>
    </tr>
    <tr>
        <td>170</td>
        <td>513</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-bottom-left-tree-value/">找树左下角的值</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.141</td>
    </tr>
    <tr>
        <td>171</td>
        <td>572</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subtree-of-another-tree/">另一个树的子树</a></td>
        <td>43.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.099</td>
    </tr>
    <tr>
        <td>172</td>
        <td>617</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-binary-trees/">合并二叉树</a></td>
        <td>74.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>173</td>
        <td>626</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/exchange-seats/">换座位</a></td>
        <td>65.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.204</td>
    </tr>
    <tr>
        <td>174</td>
        <td>628</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-of-three-numbers/">三个数的最大乘积</a>
        </td>
        <td>48.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.121</td>
    </tr>
    <tr>
        <td>175</td>
        <td>632</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/smallest-range-covering-elements-from-k-lists/">最小区间</a>
        </td>
        <td>33.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.554</td>
    </tr>
    <tr>
        <td>176</td>
        <td>692</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-words/">前K个高频单词</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.196</td>
    </tr>
    <tr>
        <td>177</td>
        <td>722</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-comments/">删除注释</a></td>
        <td>27.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.481</td>
    </tr>
    <tr>
        <td>178</td>
        <td>601</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/human-traffic-of-stadium/">体育馆的人流量</a></td>
        <td>44.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.294</td>
    </tr>
    <tr>
        <td>179</td>
        <td>227</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator-ii/">基本计算器 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>180</td>
        <td>236</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree/">二叉树的最近公共祖先</a>
        </td>
        <td>59.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.04</td>
    </tr>
    <tr>
        <td>181</td>
        <td>337</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber-iii/">打家劫舍 III</a></td>
        <td>55.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.079</td>
    </tr>
    <tr>
        <td>182</td>
        <td>365</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/water-and-jug-problem/">水壶问题</a></td>
        <td>29.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.265</td>
    </tr>
    <tr>
        <td>183</td>
        <td>627</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/swap-salary/">交换工资</a></td>
        <td>75.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>184</td>
        <td>718</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray/">最长重复子数组</a>
        </td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.187</td>
    </tr>
    <tr>
        <td>185</td>
        <td>783</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/minimum-distance-between-bst-nodes/">二叉搜索树结点最小距离</a></td>
        <td>51.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.14</td>
    </tr>
    <tr>
        <td>186</td>
        <td>807</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-increase-to-keep-city-skyline/">保持城市天际线</a>
        </td>
        <td>80.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.304</td>
    </tr>
    <tr>
        <td>187</td>
        <td>468</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-ip-address/">验证IP地址</a></td>
        <td>21.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.24</td>
    </tr>
    <tr>
        <td>188</td>
        <td>655</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-binary-tree/">输出二叉树</a></td>
        <td>53.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.423</td>
    </tr>
    <tr>
        <td>189</td>
        <td>371</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sum-of-two-integers/">两整数之和</a></td>
        <td>53.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.079</td>
    </tr>
    <tr>
        <td>190</td>
        <td>66</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/plus-one/">加一</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.017</td>
    </tr>
    <tr>
        <td>191</td>
        <td>540</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-element-in-a-sorted-array/">有序数组中的单一元素</a>
        </td>
        <td>60.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>192</td>
        <td>57</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insert-interval/">插入区间</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.097</td>
    </tr>
    <tr>
        <td>193</td>
        <td>703</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-a-stream/">数据流中的第K大元素</a>
        </td>
        <td>42.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.11</td>
    </tr>
    <tr>
        <td>194</td>
        <td>933</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-recent-calls/">最近的请求次数</a></td>
        <td>70.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.17</td>
    </tr>
    <tr>
        <td>195</td>
        <td>1014</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-sightseeing-pair/">最佳观光组合</a></td>
        <td>47.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.383</td>
    </tr>
    <tr>
        <td>196</td>
        <td>64</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-path-sum/">最小路径和</a></td>
        <td>64.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.026</td>
    </tr>
    <tr>
        <td>197</td>
        <td>242</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-anagram/">有效的字母异位词</a></td>
        <td>58.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>198</td>
        <td>232</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-queue-using-stacks/">用栈实现队列</a></td>
        <td>62.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>199</td>
        <td>309</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/">最佳买卖股票时机含冷冻期</a>
        </td>
        <td>51.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.076</td>
    </tr>
    <tr>
        <td>200</td>
        <td>442</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-all-duplicates-in-an-array/">数组中重复的数据</a>
        </td>
        <td>63.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.135</td>
    </tr>
    <tr>
        <td>201</td>
        <td>797</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/all-paths-from-source-to-target/">所有可能的路径</a></td>
        <td>74.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.414</td>
    </tr>
    <tr>
        <td>202</td>
        <td>196</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-duplicate-emails/">删除重复的电子邮箱</a></td>
        <td>59.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.088</td>
    </tr>
    <tr>
        <td>203</td>
        <td>466</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-the-repetitions/">统计重复个数</a></td>
        <td>30.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.879</td>
    </tr>
    <tr>
        <td>204</td>
        <td>595</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/big-countries/">大的国家</a></td>
        <td>76.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>205</td>
        <td>403</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/frog-jump/">青蛙过河</a></td>
        <td>32.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.282</td>
    </tr>
    <tr>
        <td>206</td>
        <td>85</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-rectangle/">最大矩形</a></td>
        <td>44.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.081</td>
    </tr>
    <tr>
        <td>207</td>
        <td>224</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator/">基本计算器</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.161</td>
    </tr>
    <tr>
        <td>208</td>
        <td>347</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-elements/">前 K 个高频元素</a></td>
        <td>60.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>209</td>
        <td>59</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix-ii/">螺旋矩阵 II</a></td>
        <td>76.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.059</td>
    </tr>
    <tr>
        <td>210</td>
        <td>316</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-duplicate-letters/">去除重复字母</a></td>
        <td>37.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.186</td>
    </tr>
    <tr>
        <td>211</td>
        <td>559</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-depth-of-n-ary-tree/">N叉树的最大深度</a></td>
        <td>68.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.105</td>
    </tr>
    <tr>
        <td>212</td>
        <td>190</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-bits/">颠倒二进制位</a></td>
        <td>54.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>213</td>
        <td>283</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/move-zeroes/">移动零</a></td>
        <td>59.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.022</td>
    </tr>
    <tr>
        <td>214</td>
        <td>638</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shopping-offers/">大礼包</a></td>
        <td>57.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.432</td>
    </tr>
    <tr>
        <td>215</td>
        <td>1101</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/the-earliest-moment-when-everyone-become-friends/">彼此熟识的最早时间</a>
        </td>
        <td>63.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.048</td>
    </tr>
    <tr>
        <td>216</td>
        <td>567</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutation-in-string/">字符串的排列</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.107</td>
    </tr>
    <tr>
        <td>217</td>
        <td>223</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area/">矩形面积</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.205</td>
    </tr>
    <tr>
        <td>218</td>
        <td>862</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k/">和至少为 K
            的最短子数组</a></td>
        <td>13.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.217</td>
    </tr>
    <tr>
        <td>219</td>
        <td>213</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber-ii/">打家劫舍 II</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>220</td>
        <td>86</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-list/">分隔链表</a></td>
        <td>55.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.055</td>
    </tr>
    <tr>
        <td>221</td>
        <td>187</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-dna-sequences/">重复的DNA序列</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.136</td>
    </tr>
    <tr>
        <td>222</td>
        <td>914</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/x-of-a-kind-in-a-deck-of-cards/">卡牌分组</a></td>
        <td>32.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.19</td>
    </tr>
    <tr>
        <td>223</td>
        <td>212</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search-ii/">单词搜索 II</a></td>
        <td>39.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.153</td>
    </tr>
    <tr>
        <td>224</td>
        <td>233</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-digit-one/">数字 1 的个数</a></td>
        <td>32.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.248</td>
    </tr>
    <tr>
        <td>225</td>
        <td>77</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combinations/">组合</a></td>
        <td>72.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.056</td>
    </tr>
    <tr>
        <td>226</td>
        <td>417</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pacific-atlantic-water-flow/">太平洋大西洋水流问题</a></td>
        <td>39.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.251</td>
    </tr>
    <tr>
        <td>227</td>
        <td>58</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/length-of-last-word/">最后一个单词的长度</a></td>
        <td>32.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.026</td>
    </tr>
    <tr>
        <td>228</td>
        <td>13</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/roman-to-integer/">罗马数字转整数</a></td>
        <td>60.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.015</td>
    </tr>
    <tr>
        <td>229</td>
        <td>180</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/consecutive-numbers/">连续出现的数字</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.106</td>
    </tr>
    <tr>
        <td>230</td>
        <td>516</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-subsequence/">最长回文子序列</a></td>
        <td>49.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.127</td>
    </tr>
    <tr>
        <td>231</td>
        <td>639</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways-ii/">解码方法 2</a></td>
        <td>26.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.688</td>
    </tr>
    <tr>
        <td>232</td>
        <td>47</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations-ii/">全排列 II</a></td>
        <td>56.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>233</td>
        <td>728</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/self-dividing-numbers/">自除数</a></td>
        <td>72.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.131</td>
    </tr>
    <tr>
        <td>234</td>
        <td>27</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-element/">移除元素</a></td>
        <td>57.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.014</td>
    </tr>
    <tr>
        <td>235</td>
        <td>1116</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-zero-even-odd/">打印零与奇偶数</a></td>
        <td>46.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.248</td>
    </tr>
    <tr>
        <td>236</td>
        <td>1140</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/stone-game-ii/">石子游戏 II</a></td>
        <td>57.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.765</td>
    </tr>
    <tr>
        <td>237</td>
        <td>423</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reconstruct-original-digits-from-english/">从英文中重建数字</a>
        </td>
        <td>51.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.409</td>
    </tr>
    <tr>
        <td>238</td>
        <td>877</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/stone-game/">石子游戏</a></td>
        <td>67.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.196</td>
    </tr>
    <tr>
        <td>239</td>
        <td>1143</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-common-subsequence/">最长公共子序列</a></td>
        <td>58.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.101</td>
    </tr>
    <tr>
        <td>240</td>
        <td>96</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-binary-search-trees/">不同的二叉搜索树</a></td>
        <td>64.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>241</td>
        <td>1195</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fizz-buzz-multithreaded/">交替打印字符串</a></td>
        <td>57.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.358</td>
    </tr>
    <tr>
        <td>242</td>
        <td>394</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-string/">字符串解码</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.068</td>
    </tr>
    <tr>
        <td>243</td>
        <td>1114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-in-order/">按序打印</a></td>
        <td>58.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.083</td>
    </tr>
    <tr>
        <td>244</td>
        <td>456</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/132-pattern/">132模式</a></td>
        <td>25.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.19</td>
    </tr>
    <tr>
        <td>245</td>
        <td>673</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence/">最长递增子序列的个数</a>
        </td>
        <td>33.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.229</td>
    </tr>
    <tr>
        <td>246</td>
        <td>641</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-circular-deque/">设计循环双端队列</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.27</td>
    </tr>
    <tr>
        <td>247</td>
        <td>40</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum-ii/">组合总和 II</a></td>
        <td>59.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.042</td>
    </tr>
    <tr>
        <td>248</td>
        <td>51</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens/">N皇后</a></td>
        <td>67.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>249</td>
        <td>60</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutation-sequence/">第k个排列</a></td>
        <td>48.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.069</td>
    </tr>
    <tr>
        <td>250</td>
        <td>100</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/same-tree/">相同的树</a></td>
        <td>56.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.026</td>
    </tr>
    <tr>
        <td>251</td>
        <td>115</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/distinct-subsequences/">不同的子序列</a></td>
        <td>46.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.155</td>
    </tr>
    <tr>
        <td>252</td>
        <td>147</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/insertion-sort-list/">对链表进行插入排序</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.083</td>
    </tr>
    <tr>
        <td>253</td>
        <td>150</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/evaluate-reverse-polish-notation/">逆波兰表达式求值</a>
        </td>
        <td>49.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.057</td>
    </tr>
    <tr>
        <td>254</td>
        <td>177</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nth-highest-salary/">第N高的薪水</a></td>
        <td>43.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.07</td>
    </tr>
    <tr>
        <td>255</td>
        <td>179</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-number/">最大数</a></td>
        <td>35.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>256</td>
        <td>183</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/customers-who-never-order/">从不订购的客户</a></td>
        <td>65.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.066</td>
    </tr>
    <tr>
        <td>257</td>
        <td>193</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-phone-numbers/">有效电话号码</a></td>
        <td>27.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>258</td>
        <td>195</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/tenth-line/">第十行</a></td>
        <td>43.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.154</td>
    </tr>
    <tr>
        <td>259</td>
        <td>207</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule/">课程表</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.067</td>
    </tr>
    <tr>
        <td>260</td>
        <td>225</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-stack-using-queues/">用队列实现栈</a></td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>261</td>
        <td>238</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/product-of-array-except-self/">除自身以外数组的乘积</a></td>
        <td>66.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>262</td>
        <td>253</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms-ii/">会议室 II</a></td>
        <td>40.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.202</td>
    </tr>
    <tr>
        <td>263</td>
        <td>273</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-english-words/">整数转换英文表示</a></td>
        <td>26.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.309</td>
    </tr>
    <tr>
        <td>264</td>
        <td>276</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/paint-fence/">栅栏涂色</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.452</td>
    </tr>
    <tr>
        <td>265</td>
        <td>292</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/nim-game/">Nim 游戏</a></td>
        <td>69.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.057</td>
    </tr>
    <tr>
        <td>266</td>
        <td>324</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wiggle-sort-ii/">摆动排序 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.148</td>
    </tr>
    <tr>
        <td>267</td>
        <td>332</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reconstruct-itinerary/">重新安排行程</a></td>
        <td>35.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.201</td>
    </tr>
    <tr>
        <td>268</td>
        <td>397</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-replacement/">整数替换</a></td>
        <td>33.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.282</td>
    </tr>
    <tr>
        <td>269</td>
        <td>421</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array/">数组中两个数的最大异或值</a>
        </td>
        <td>57.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.358</td>
    </tr>
    <tr>
        <td>270</td>
        <td>506</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/relative-ranks/">相对名次</a></td>
        <td>53.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.215</td>
    </tr>
    <tr>
        <td>271</td>
        <td>541</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string-ii/">反转字符串 II</a></td>
        <td>51.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.145</td>
    </tr>
    <tr>
        <td>272</td>
        <td>557</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-iii/">反转字符串中的单词 III</a>
        </td>
        <td>69.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.056</td>
    </tr>
    <tr>
        <td>273</td>
        <td>564</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-closest-palindrome/">寻找最近的回文数</a></td>
        <td>13.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.606</td>
    </tr>
    <tr>
        <td>274</td>
        <td>620</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/not-boring-movies/">有趣的电影</a></td>
        <td>74.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.101</td>
    </tr>
    <tr>
        <td>275</td>
        <td>670</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-swap/">最大交换</a></td>
        <td>38.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.305</td>
    </tr>
    <tr>
        <td>276</td>
        <td>686</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-string-match/">重复叠加字符串匹配</a></td>
        <td>33.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.222</td>
    </tr>
    <tr>
        <td>277</td>
        <td>763</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-labels/">划分字母区间</a></td>
        <td>69.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.173</td>
    </tr>
    <tr>
        <td>278</td>
        <td>766</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/toeplitz-matrix/">托普利茨矩阵</a></td>
        <td>63.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.164</td>
    </tr>
    <tr>
        <td>279</td>
        <td>784</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/letter-case-permutation/">字母大小写全排列</a></td>
        <td>62.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.134</td>
    </tr>
    <tr>
        <td>280</td>
        <td>705</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-hashset/">设计哈希集合</a></td>
        <td>55.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.183</td>
    </tr>
    <tr>
        <td>281</td>
        <td>867</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/transpose-matrix/">转置矩阵</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>282</td>
        <td>881</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/boats-to-save-people/">救生艇</a></td>
        <td>39.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.339</td>
    </tr>
    <tr>
        <td>283</td>
        <td>912</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-an-array/">排序数组</a></td>
        <td>52.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.125</td>
    </tr>
    <tr>
        <td>284</td>
        <td>509</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fibonacci-number/">斐波那契数</a></td>
        <td>66.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.045</td>
    </tr>
    <tr>
        <td>285</td>
        <td>1051</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/height-checker/">高度检查器</a></td>
        <td>72.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.139</td>
    </tr>
    <tr>
        <td>286</td>
        <td>518</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change-2/">零钱兑换 II</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.194</td>
    </tr>
    </tbody>
</table>